Hey guys. Just thought I'd pop in here to mention an alternative to installing Cyanogenmod or blocking all internet activity with a firewall.

I found XPrivacy while looking for interesting xposed modules to install. It's like Privacy Guard but better:

http://forum.xda-developers.com/xposed/modules/mod-xprivacy-...

All you need to do is root your phone and install the xposed framework on your existing ROM. :)